/var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/./gcc/xgcc -shared-libgcc -B/var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/./gcc -nostdinc++ -L/var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/src -L/var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/src/.libs -B/usr/x86_64-pc-linux-musl/bin/ -B/usr/x86_64-pc-linux-musl/lib/ -isystem /usr/x86_64-pc-linux-musl/include -isystem /usr/x86_64-pc-linux-musl/sys-include    -x c++-header -nostdinc++ -D_GNU_SOURCE -I/var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/include/x86_64-pc-linux-musl -I/var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/include -I/var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/gcc-4.6.3/libstdc++-v3/libsupc++ -O2 -g -std=gnu++0x /var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/gcc-4.6.3/libstdc++-v3/include/precompiled/stdc++.h \
-o x86_64-pc-linux-musl/bits/stdc++.h.gch/O2ggnu++0x.gch
In file included from /var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/include/x86_64-pc-linux-musl/bits/os_defines.h:40:0,
                 from /var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/include/x86_64-pc-linux-musl/bits/c++config.h:393,
                 from /var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/include/cctype:43,
                 from /var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/gcc-4.6.3/libstdc++-v3/include/precompiled/stdc++.h:36:
/usr/x86_64-pc-linux-musl/include/features.h:1:2: warning: #warning "features.h is bogus" [-Wcpp]
In file included from /var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/include/bits/locale_facets.h:43:0,
                 from /var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/include/bits/basic_ios.h:39,
                 from /var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/include/ios:45,
                 from /var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/include/istream:40,
                 from /var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/include/sstream:39,
                 from /var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/include/complex:47,
                 from /var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/include/ccomplex:42,
                 from /var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/gcc-4.6.3/libstdc++-v3/include/precompiled/stdc++.h:53:
/var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-4.6.3/work/build/x86_64-pc-linux-musl/libstdc++-v3/include/x86_64-pc-linux-musl/bits/ctype_base.h:50:35: error: ‘_ISupper’ was not declared in this scope